Difference between revisions of "MediaWiki:Common.js"

Latest revision as of 05:38, 16 January 2022

/* Any JavaScript here will be loaded for all users on every page load. */

/** Collapsible tables *********************************************************
 *
 *  Description: Allows tables to be collapsed, showing only the header. See
 *                         http://www.mediawiki.org/wiki/Manual:Collapsible_tables.
 *  Maintainers: [[en:User:R. Koot]]
 */

var autoCollapse = 2;
var collapseCaption = 'Hide';
var expandCaption = 'Show';

function collapseTable( tableIndex, tag ) {
  var tag = tag || "table";
  var Button = document.getElementById( 'collapseButton-' + tag + "-" + tableIndex );
  var Table = document.getElementById( 'collapsibleTable-' + tag + "-" + tableIndex );

  if ( !Table || !Button ) {
    return false;
  }

  if (tag === "table") {
    var Rows = Table.rows;

    if ( Button.firstChild.data == collapseCaption ) {
      for ( var i = 1; i < Rows.length; i++ ) {
        Rows[i].style.display = 'none';
      }
      Button.firstChild.data = expandCaption;
    } else {
      for ( var i = 1; i < Rows.length; i++ ) {
        Rows[i].style.display = Rows[0].style.display;
      }
      Button.firstChild.data = collapseCaption;
    }
  } else {
    Button.innerText = Table.style.display === "none" ? collapseCaption : expandCaption;
    Table.style.display = Table.style.display === "none" ? "block" : "none";
  }
}

function createCollapseButtons(parent, tag) {
  var tableIndex = 0;
  var NavigationBoxes = new Object();
  var parent = parent || document;
  var tag = tag || "table";
  var Tables = parent.getElementsByTagName( tag );

  for ( var i = 0; i < Tables.length; i++ ) {
    if ( hasClass( Tables[i], 'collapsible' ) && !Tables[i].id) {
      var current_table = Tables[i];

      NavigationBoxes[tableIndex] = current_table;
      current_table.setAttribute( 'id', 'collapsibleTable-' + tag + "-" + tableIndex );
      var Button = document.createElement( 'div' );
      var ButtonLink = document.createElement( 'a' );
      var ButtonText = document.createTextNode( collapseCaption );

      Button.className = 'collapseButton'; // Styles are declared in [[MediaWiki:Common.css]]
      Button.style.width = current_table.offsetWidth + "px";

      ButtonLink.setAttribute( 'id', 'collapseButton-' + tag + "-" + tableIndex );
      ButtonLink.setAttribute( 'href', "javascript:collapseTable(" + tableIndex + ", '" + tag + "');" );
      ButtonLink.appendChild( ButtonText );

      Button.appendChild( document.createTextNode( '[' ) );
      Button.appendChild( ButtonLink );
      Button.appendChild( document.createTextNode( ']' ) );

      current_table.parentNode.insertBefore( Button, current_table );
      tableIndex++;
    }
  }

  for ( var i = 0;  i < tableIndex; i++ ) {
    if ( hasClass( NavigationBoxes[i], 'collapsed' ) || ( tableIndex >= autoCollapse && hasClass( NavigationBoxes[i], 'autocollapse' ) ) ) {
      collapseTable( i, tag );
    } else if ( hasClass( NavigationBoxes[i], 'innercollapse' ) ) {
      var element = NavigationBoxes[i];
      while ( element = element.parentNode ) {
        if ( hasClass( element, 'outercollapse' ) ) {
          collapseTable( i, tag );
          break;
        }
      }
    }
  }
}

if (typeof addOnloadHook === 'function') {
  addOnloadHook( createCollapseButtons );
  addOnloadHook( function () {
    createCollapseButtons(document.getElementById('mw-content-text'), 'div');
  });
}

/** Test if an element has a certain class **************************************
 *
 * Description: Uses regular expressions and caching for better performance.
 * Maintainers: [[User:Mike Dillon]], [[User:R. Koot]], [[User:SG]]
 */

var hasClass = ( function() {
    var reCache = {};
    return function( element, className ) {
    return ( reCache[className] ? reCache[className] : ( reCache[className] = new RegExp( "(?:\\s|^)" + className + "(?:\\s|$)" ) ) ).test( element.className );
    };
    })();



/* GOOGLE FONTS */

/* Embed item template generator */
if ( mw.config.get( 'wgPageName' ) === 'Help:Creating_an_Item_Article') {
    $(function () {
       var embedframe = document.createElement('iframe');
       embedframe.width = "100%";
       embedframe.height = "500";
       embedframe.frameborder = "no"
       embedframe.loading = "lazy"
       embedframe.scrolling = "no";
       embedframe.src = '//codepen.io/shawncplus/embed/QWGaOVL?height=265&theme-id=dark&default-tab=result';
       $('#itemgenerator-embed').append(embedframe);
    });
}

// Mediawiki strips aria-hidden attributes, use the sr-hide class if you want to hide visual elements from JAWS
$(function () {
  $('.sr-hide').attr('aria-hidden', 'true');

  // vim style search with /
  window.addEventListener('keydown', function (e) {
    // ignore keypress if user is in an input field
    if (document.activeElement && document.activeElement.matches('input,textarea')) {
      return;
    }

    if (e.key === '/') {
      searchInput.focus();
      e.preventDefault();
    }
    console.info('Attached /=search keyboard shortcut');
  });
});